Effects of selection for more vigorous seminal roots in two cross populations of oat [Avena sativa L.]

• Autorzy: Gorny A G , Szolkowska A
• Języki publikacji: EN

Abstrakty

EN

Three steps of multi-stage selection for more vigorous seminal roots were done in two cross combinations of oat. The total length of roots (TRL) was measured in seedlings of the F₂, F₃ and F₄ generations grown in filter-paper rollers. On average, the finally selected F₅ (or F₆) progenies distinguished by 7-11% improved rooting ability than their midparents. Transgressive forms were selected only in one cross combination. Coefficients of realized heritability for TRL were low and ranged from 0.08 to 0.42 indicatinga relatively high proportion of non-additive gene effects in the variance of TRL. Tolerance of the F₆-progenies to water and nutrient limitations was evaluated in pot and field experiments. Correlated selection effects were dependent upon initial cross combination. Only progenies from one cross combination exhibited an improved drought tolerance at the 8-9 Feekes' stage. The both enhanced rooting and decreased S : R ratio of the F₆-progenies correlated with their improved tolerance to reduced P supply at the 4-leaf stage. However, no significant consistence occurred between indices of the tolerance to reduced nutrition at the vegetative growth and those at field maturity. Performed root selection identified more frequently high yielding genotypes with less stable grain yield. No progenies were obtained that outperform their parents under low-input conditions. It was emphasized that root selection should be accompanied by selection for integrated response components.

Słowa kluczowe

EN

vegetative growth; cross combination; nitrogen limitation; cross population; Avena sativa; root selection; root total length; drought; selection effect; seminal root; phosphorus limitation; oat; water deficit

• Wydawca: -
• Czasopismo: Journal of Applied Genetics
• Rocznik: 1996
• Tom: 37
• Numer: 4
• Opis fizyczny: p.331-344

Twórcy

autor

Gorny A G

• Institute of Plant Genetics, Polish Academy of Sciences, ul.Strzeszynska 34, 60-479 Poznan, Poland

autor

Szolkowska A

• Plant Breeding "Danko", Kopaszewo Station, Choryń

Bibliografia

• AUSTIN R.B. (1989). Prospects for improving crop production in stressful environments. In: Plants under Stress (H.G. Jones, T.J. Flowers, M.B. Jones, eds.). Soc. Exp. Biol. Seminar Ser. 39, Cambridge Univ. Press: 235-248.
• BARBER S.A. (1984). Soil Nutrient Bioavailability: A Mechanistic Approach. J. Wiley & Sons, N. York.
• BARBOUR N.W., MURPHY C.F. (1984). Field evaluation of seedling length selection in oats. Crop Sci. 24: 165-169.
• BLUM A. (1987). Methods of plant breeding for drought resistance. In: Agriculture. Drought Resistance in Plants. Physiological and Genetic Aspects (L. Monti, E. Proceddu, eds.). Euro. Comm. EAEC, Brussels: 235-254.
• CZEMBOR H.J. (1989). Stan i perspektywy hodowli roślin w Polsce. Biuletyn IHAR 171/172: 5-14.
• FALCONER D.S. (1981). Introduction to Quantitative Genetics. (2nd ed.), Longman, N. York.
• FISCHER R.A., MAURER R. (1978). Drought resistance in spring wheat cultivare. I. Grain yield responses. Aust. J. Agrie. Res. 29: 897-912.
• FREY K.J., HORNER T. (1957). Heritability in standard units. Agron. J. 49: 59-62.
• GÓRNY A.G. (1992). Genetic variation of the root system in spring barley and oat. Treatises and Monographs no. 1, IGR PAN Poznań: 1-90.
• GÓRNY A.G. (1995). Direct effects of cyclic selection for longer seminal roots in spring barley (Hordeum vulgare L.). J. Appl. Genet. 36: 17-26.
• GÓRNY A.G. (1996). Evaluation of response to limited water, nitrogen and phosphorus supply in spring barley genotypes selected for vigorous seminal roots. J. Appl. Genet. 37: 11-27.
• GRZESIUK S., KULKA K. (1981). Fizjologia i Biochemia Nasion. PWRiL, Warszawa.
• HEEN A. (1981). Root growth, transpiration and leaf-firing during water stress in barley: breeding implications for drought resistance. Barley Genetics IV, Session V, Breeding for stress: 375-382.
• KACZMAREK Z. (1995). Statistical planning and evaluation of data in plant breeding experiments. (IAEA/FAO), Vienna-Seibersdorf: 1-50.
• LAFEVER H.N. (1981). Genetic differences in plant response to soil nutrient stress. J. Plant Nutr. 4: 89-109.
• LARSSON S. (1982). A simple, rapid and non-destructive screening method useful for drought resistance breeding in oats (Avena sativa L.). Z. Pflanzenzüchtg. 89: 206- 221.
• LARSSON S., GÓRNY A.G. (1988). Grain yield and drought resistance indices of oat cultivars in field rain shelter and laboratory experiments. J. Agronomy & Crop Sci. 161: 277-286.
• LARSSON S., STOY V. (1982). Selektion auf Dürreresistenz bei Hafer mit Hilfe eines Wurzel- Blatt-Indexes. Ber. Arbeitstag. Bundes. Alpen. Landwirtsch. in Gumpenstein, November 1982: 79-88.
• LYNCH P.J., FREY K.J. (1993). Genetic improvement in agronomic and physiological traits of oat since 1914. Crop Sci. 33: 984-988.
• MAC KEY J. (1979). Wheat domestication as a shoot:root interrelation process. Proc. 5th Int. Wheat Genet. Symp., New Delhi 1978, Indian Soc. Genet. Plant Breed. 2: 875-890.
• MALEPSZY S. (1992). Kierunki w genetyce i hodowli roślin, których realizacja powinna sprzyjać rozwojowi nowoczesnej produkcji rolnej. Post. Nauk Roln. 39: 15-19.
• MIAN M.A.R., NAFZIGER E.D. (1994). Seed size and water potential effects on germination and seedling growth in winter wheat. Crop Sci. 34: 169-171.
• MSTAT-C 1989. A microcomputer program for the design, management and analysis of agronomic research experiments. Michigan State Univ.
• O'TOOLE J.C., BLAND W.L. (1987). Genetic variation in crop plant root system. Adv. Agron. 41: 91-145.
• PELTONEN-SAINIO P. (1991). Effects of moderate and severe drought stress on the preanthesis development and yield formation of oats. J. Agrie. Sci. Finland 63:379-389.
• PELTONEN-SAINIO P., MÄKELÄ P. (1995). Comparison of physiological methods to assess drought tolerance in oats. Acta Agrie. Scand., Sect. B., Soil and Plant Sci. 45: 32-38.
• PFAHLER P.L., BARNETT R.D., LUKE H.H. (1987). Relationship between seed weight and early seedling growth in rye, wheat and triticale. Soil Crop Sci. Soc. sFIa. Proc. 47: 153-157.
• ROBERTSON B.M., WAINES J.G., GILL B.S. (1979). Genetic variability for seedling root numbers in wild and domesticated wheats. Crop Sci. 19: 843-847.
• SATTELMACHER B., GERENDAS J., THOMS K., BRÜCK H., BAGDADY N.H. (1993.) Interaction between root growth and mineral nutrition. Envir. Exp. Bot. 33: 63-73.
• SIDDIQI M.Y., GLASS A.D.M. (1981). Utilization index: a modified approach to the estimation and comparison of nutrient utilization efficiency in plants. J. Plant Nutr. 4: 289-302.